Condensing apparatus.



G.I.FORAN. CONDENSING APPARATUS. APPLICATWN FILED MAY 3. 1912.

1,, wfiww Patented Feb.12,1918.

:GEORGEJ. sonata, or NEW YORK, N. Y., ASSIG-NOR TO HENRY R.WOR'lI-IINGTON, A

CORPORATION OF NEW JERSEY.

CONDENSING APPARATUS.

Specification of Letters Patent.

Patented Feb. 12, 1913.

Application filed May 3, 1912. Serial No. 694,894.

To all whom itmay concem:

Be it known that I, GEORGE J. FORAN, a citizen of the United States,residing at New York cit county of New York, and State of New York, haveinvented certain new and useful Improvements in Condensing Apparatus,fully described and represented inthe following'specification andtheaccompanyin'g drawings, forming a part of the same.

This inventionrelates particularly to condensing'apparatus of thatclass, in which the airis removed'from the condenser and discharged by.a hydraulic pump or compressor of any suitable type, such for instance,as a liquid throwing pump or liquid injector, so that the :air iscompressed and carried away by the liquid. The air preferably in mostcases is drawn oil from the condenser separately from the water ofcondensation, so that the hydraulic air compressor or pump handles onlythe air and unconden'sed vapor, but in some cases the air and water ofcondensation may be handled by the by draulic compressor or pump. Theespecial object of the presentinvention is to provide an apparatus ofthis class, in which the water for the hydraulic air pump or compressoris circulated for re-use therein and the air is efficiently separatedfrom the water, so as to secure an efficient operation of the apparatus.

While the invention relates especially to combined condensing and aircompressing apparatus, as above stated, certain features of theinvention, also, may be used generally in such liquid air compressingapparatus.

In the accompanying drawing, forming a part of this specification, thereis shown for the purpose of illustration, a condensing apparatusembodying all the features of the invention in their preferred form, andthis apparatus will now be described in detail and the features formingthe invention then specifically pointed out in the claims.

In the drawing,

Figure 1 is a diagrammatic side elevation of the condensing apparatus,with the air compressing portion shown in vertical section, and showinga condensing apparatus in which separate discharge pumps are used forthe air and water of condensation.

Fig. 2 is a horizontal section on line 2 of Fi 1.

l teferring to the drawing, A is a surface condenser having the hot wellB from which the water of condensation is delivered through pipe 10, andcentrifugal discharge pump C, and the air and uncondensed vapor aredrawn off through pipe 11 by the hydraulic air discharge pump orcompressor D. The hydraulic air discharge pump 'or compressor shown isthe same as fully shown and described inUnited States Letters Patent toOtto Hildebert Mueller, N 0. 1,031,143, dated July 2, 1912, having therotating wheel a with axial passages receiving liquid through theannular port I) supplied through pipe 12 from centrifugal circulatingpump E, and delivering its liquid and compressed air through nozzle 13.

In carrying out the present invention, the nozzle l3 delivers to tank Ffrom which the circulating pump E takes its supply through pipe 1 1-,and this tank is shown as having the air outlet 15 at the top and pipe16 for make up water. The air compressed in nozzle 13 may collect tosuch an extent as to interfere with the proper operation of the pump Dor the circulating pump E so that the full efiiciency of the apparatusin maintaining the desired vacuum in the condenser A is notsecured. Toavoid this, means are provided for separating the air from the water atthe bottom of the nozzle 13 so that the air does not pass to the tank F,but is freed and escapes from the water as it is delivered from thenozzle. This result is secured by developing the bottom of the nozzle 13into an annular passage 17 inclosinga central air chamber 18, andforming in this annular passage one or more helical guides or vanes 1,two such guides being shown, by which the water is thrown outwardspirally and separated from the air, and the latter passes inward to thechamber 18, the bottom edge 2 of the chamber 18 being above the bottomedge 3 of the nozzle, to provide an air passage from the inner edges ofthe guides to the air chamber. The air then passes from chamber 18 tothe atmosphere through air escape pipe 19.

It will be understood that the invention is not limited to the specialform of the means shown for separating the air from the water, nor tothe particular hydraulic air compressor shown, although these are thepreferred forms for embodying my invention, but that the invention,broadly consid ered, may be embodied in apparatus Widely chargeddifferent in form. The as a surface condenser, but may be either asurface or jet condenser of any suitable type.

WVhat I claim is V 1. The combination with a steam condenser, of ahydraulic air discharge pump, a tank receiving the discharge water fromthe air discharge pump, a discharge passage from the air discharge pumpextending below the level of the water in the tank and through which theair and water are disfrom the air discharge pump, a passage for theescape of air from the discharge water to the atmosphere, and means forcirculating water from the tank through the air discharge pump.

2. The combination with a steam condenser, cia hydraulic lair dischargepump, a tank receiving the discharge water from the air discharge pump,an annular passage extending below the level of the water in the tankand through which the air and water are discharged from the airdischarge pump, an air passage within said annular passage having an airescape to the atmosphere, and means for'circulating water from the tankthrough the air discharge pump.

3. The combination with a steam condenser of a hydraulic air dischargepump, a tank receiving the discharge water from the air discharge pump,an annular passage extending below the level of the water in the tankand through which the air and water are discharged by the air dischargepump, an air passage within said annular passage having an air escape tothe atmosphere, means for separating the air and water in said annularpassage for discharge through the air passage to the atmosphere, andmeans for circulating water from the tank through the air dischargepump.

4:. The combination with a condenser, of

I Copies of this patent may be obtained for five cents each,

I v condenser 1s shown charge pump, means a hydraulic air dischargepump, a tank receiving the discharge water from the disfor circulatingwater through the discharge pump and tank, an annular passage throughwhich the air and water are discharged by the discharge pump into thetank below the level of water therein, an air chamber within saidannular passage having an air escape to the atmosphere, and helicalguides or vanes in said annular passage for throwing the water outwardto separatethe water from the air and permit the airto pass to the airchamber within the annular passage.

5. The combination with a hydraulic air compressor or pump, of a tankreceiving'the discharge water from the compressor,means for circulatingwater through the compressor and tank, an annular passage through whichthe air and water are discharged by the compressor into the tank belowthe level of water therein, an air chamber within said annular passagehaving an air escape to the atmosphere, and helical guides or vanesinsaid annular passage for throwing the water outward to separate thewater from the air and permit the air to pass to the air chamber withinthe annular passage.

. 6. A hydraulic air compressor orpum having discharge nozzle 13enlarged at its delivery end into annular chamber 17, in combinationwith discharge tank F, air chamber 18 within the annular passage 17having an air outlet, and helical vanes '1 in. passage 17 In testimonywhereof, I have hereunto set my hand in the presence of two subscribingwitnesses.

V g J. FORAN.

Witnesses: Y I

R. WHITE, G. J. SAWYER.

Washington, D. C.

by addressing the Coxhmissioner of Patents,

